Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4656711 | Method for determining piston form for an internal combustion engine | Kiyomi Sumida | 1987-04-14 |
| 4228203 | Method of forming aluminum coating layer on ferrous base alloy workpiece | Junichi Yamamoto, Hideo Kohara | 1980-10-14 |